baber/WOPTO huggingface dataset:
Patent GB-228049-A (GB)
Title: Improvements relating to electric switches
IPC: H01H21/18
Filed: 1924-05-12
Abstract: 228,049. Steele, J. H. May 12, 1924. Switches, quick-break. -An ironclad switch has an external operating handle 10 loosely mounted on the externally projecting end of the rotary switch shaft 5 which is operated through a lost-motion device comprising a forked member 11 secured to the shaft 5 within which works a pin 12 carried by the handle. A spring 9 provided a quick-break action, the motion of the switch shaft in either direction being limited by a projection 13 cooperating with fixed stops 14, 15. Interlocking switch mechanism with lids.-The handle 10 is interlocked with the hinged lid 2 which carries a curved projection 16 over which slides the surface 20 of a lug 17 integral with the handle 10. As the lid is being opened the. engagement of surfaces 19, 18 prevent the switch being closed and a further projection 21 on the handle arrests the outward motion of the lid. Contacts.-The central portion of the shaft 5 is flattened and fitted with an insulating tube 6 which is applied in a warm state. On this insulated portion are clamped contact holders 7 bearing movable bridging contacts 8 loosely mounted on pins 23, Fig. 7. The fixed contacts 25 are clamped on a shaft 24 surrounded by an insulating tube 28, the shaft 24 having at one end a projection 26 passing through the wall of the casing 1 and at the other end a securing screw 27. Between the middle pair of fixed contacts is loosely mounted an insulating shield 29 prevented from moving axially by the projecting ends of insulating bushes 4 for the incoming leads.
Patent GB-651321-A (GB)
Title: Improvements in or relating to flexible abrasive articles
IPC: C08L27/00
Filed: 1942-08-19
Abstract: Vinyl resin compositions are employed to impregnate the cloth or paper backing of a flexible abrasive material, and a phenolformaldehyde resin is used as a grit-bonding or sand-sizing coat.  The polyvinyl resin may be a polymer of a compound having the formula CH2=CH-R where R is a hydroxyl, carboxyl, chloride, bromide, acetate, amino, or phenyl radical.  Polycrotonyl chloride may be used.  Examples describe compositions of vinyl chloride-acetate copolymers (1) with litharge, carbon black, and methylamyl ketone (2) alone or with softeners or plasticizers such as linseed, tung, or castor oil, diethyl, dibutyl, or diamyl phthalate, or p-toluene sulphonamide and, if desired, a solvent such as a mixture of butyl acetate, ethyl alcohol, and toluene, or glycol monobutyl ether with or without xylene.  Another example describes a composition containing polyvinyl chloride or acetate or their copolymer, an oil or plasticizer such as linseed, tung, or castor oil, diethyl, dibutyl, or diamyl phthalate, p-toluene sulphonamide, tricresyl or triphenyl phosphate, a filler such as carbon black, bone black, or zinc oxide, and a solvent.  Aqueous solutions of polyvinyl alcohol may be applied in conjunction with linseed or tung oil, litharge, or both litharge and an oil. Alternatively polyvinyl alcohol may be insolubilized after application by treatment with dimethyl or diethyl sulphate in caustic alkali, an ether, or a ketone such as diethyl ketone.  A phenol-aldehyde resin for the grit-bonding coat is made by heating a mixture of phenol, formaldehyde, and barium oxide to 125-150 DEG  F. for about 24 hours, neutralizing with an acid such as hydrochloric acid, boiling off the water, and holding at 215 DEG  F. until the viscosity of the resin is 500 centipoises at 150 DEG  F. Ammonia or sodium hydroxide is added and the resin kept at 200 DEG F. until its viscosity is 1000 centipoises at 70 DEG  C., after which it is thinned with a solvent such as the ethyl ether of glycol. Reference has been directed by the Comptroller to Specification 633,012.
Patent GB-118069-A (GB)
IPC: A47H5/06
Abstract: 118,069. Kimber, W. E. March 25, 1918. Curtain poles and rods.-A rotatable curtain-pole 1 is provided with a projecting spiral 2 to operate the rings 3, and is supported by rollers 5 on open brackets 4. The operating-cord '6 may pass over a pulley 7 on the end of the curtainrod or over the rod and between it and grooved supporting-rollers. The rod is provided with right and left handed spirals to operate a pair of curtains, or with a number of spirals to operate a number of pairs of curtains simultaneously.
Patent GB-528047-A (GB)
Title: Improvements in a machine for performing cutting-off and die operations on elongatedmetal or like stock
IPC: B23D25/04
Filed: 1939-04-19
Abstract: 528,047. Shearing ; punching. TISHKEN, P. April 19, 1939, No. 11815. [Class 83 (iv)] In a machine for cutting into lengths, punching or otherwise operating upon moving stock, a block 27 and co-operating die 28 are guided by pins 35 for vertical movement by a crank 7 and are mounted in a slide 26 for movement with the stock. When the end of the stock contacts a block 59 on a lever 56 it pushes to the right. Fig. 1, a block 55 connected to the shear slide 26 by rods 61. Movement of the slide 26 causes a detent 47 to trip a one-revolution clutch 14. The blade 27 carries out a cutting cycle and the lever 56 contacts, and is raised by a block 50. Inclined surfaces and a spring then eject the cut length. A lug 22 engages an arm 20 to disconnect the drive. Waste slugs fall down a shoot 78.
Patent GB-789295-A (GB)
Title: Improved switching arrangements for controlling electrical heating apparatus
IPC: H05B1/02
Filed: 1954-04-23
Abstract: 789,295. Control systems for electric heaters. KNOWLES, R. W. July 22, 1955 [April 23, 1954], No. 11829/54. Class 38 (4). The heater EL of an electric incinerator, or the like, is controlled by a main switch S1 and a bimetal safety switch S3 responsive to thermal overload of the incinerator. The main switch may be operated manually, by an electric motor, or, as shown, by a thermally responsive bimetal element provided with a heating resistor H2. In the latter case, the switch is so disposed as to be uninfluenced by the temperature of the incinerator and may be arranged for single operation, or for cycling. The switch may be provided with a second bimetal strip S2 to render operation independent of ambient temperature. The safety switch is directly responsive to heat generated in the incinerator and is associated with a heating resistor H5 connected across a source either through the leakage resistance (which decreases with rise of temperature) of the main heater EL when this is of the sheathed type, or through a temperature-dependent resistance member T, such as a capsule, tube, disc, or ring adjacent the main heater. The heater H5 may be replaced by a solenoid which acts on the switch S3. Specification 693,487, [Group XI], is referred to.
Patent GB-513795-A (GB)
Title: Improvements in or relating to control of aircraft
IPC: B64C13/00
Filed: 1938-04-20
Abstract: 513,795. Controlling aircraft. DORNIER-WERKE GES., (formerly DORNIER-METALLBAUTEN GES.). April 20, 1938, No. 11854. Convention date, May 12, 1937. [Class 4] Aircraft landing flaps and tail planes are displaceable, through an arrangement of gearing, by a power plant common to both. As shown, an aeroplane includes an adjustable tail plane 5, balance flaps 4 and landing, flaps 3. The plane 5 and flaps 13 are mounted, respectively, on shafts 6, 8 provided with sprocket wheels 9, 10. A reversible electric motor 12 drives shafts 13, 14 carrying sprocket wheels 15, 16 connected, as shown. to the wheels 9, 10. The pilot controls the motor through a reversing switch 30. An over-riding automatic pressure control 31, 36 is provided and this is adapted to cause reversal of the motor if the aeroplanespeed and consequently the air-pressure should increase after the flaps have been operated. The motor is coupled to a flange 72, Fig. 2, or drives the flange through worm gearing. The flange is mounted on a shaft 53 carrying a pinion 71 and coaxial with shafts 54, 73. The shaft 54 carries the sprocket wheel 16 and a pinion 65 is slidable thereon. The shaft 73 carries the sprocket-wheel 15 and a pinion 70. A shaft 52 carries slidable pinions'57. 58 actuated by bifurcated levers 60, 63 controlled by the pilot. A further shaft 51 carries a sprocket wheel 56 and a pinion 55. Actuation of, the pinion 58 permits either the tail-plane or both the tail-plane and the flaps to be adjusted and actuation of the pinion 57 disconnects the motor and permits the gear to be rotated by hand or otherwise through the sprocket 56. The flaps or their actuating members are provided'with contacts which interrupt the electrical circuit when the flaps have attained a predetermined position. '
Patent GB-225503-A (GB)
Title: Improvements in or relating to apparatus for cooling incandescent coke
IPC: C10B39/02
Filed: 1924-05-14
Abstract: 225,503. F³lscher, J. Nov. 28, 1923, [Convention date]. Addition to 208,557. Cooling discharged materials. - In the coke-cooling apparatus described in the parent Specification the supply pipe leading cooling-gas to the, distributor is omitted, and to facilitate the flow of gas from the inlets in the lower part of the cooling-chamber to the distributor i an open space in the coke is maintained, for example, by a swinging basket-like member l.
Patent GB-1065186-A (GB)
Title: Apparatus for expressing liquids from materials
Inventor: SIMPSON RICHARD
IPC: B30B9/02
Filed: 1966-03-18
Abstract: 1,065,186. Filtering liquids. G. & J. WEIR Ltd. March 18, 1966, No. 11955/66. Addition to 1,032,933. Heading BID. A sealing member 13, 15 is lowered by rams 14 to engage a filter cloth 20 covering a drainage platform 16, 19, and then, together with platen 10 and flexible annular diaphragm 23, forms a closed chamber into which slurry is introduced from inlet 25 up to a level 27, and compressed air is introduced by inlet 26 to express the liquid content through cloth 20. The cloth 20 may be an endless or non-endless band and is moved after lifting member 13, 15 to carry a new section of cloth on to the platform and to clean the used cloth by engaging scrapers and/or washing sprays (30) (Fig. 3, not shown). Inlet 25 incorporates a valve closed by electrode 28 when the slurry reaches probe 27 during filling. During pressurising, diaphragm 23 expands, urging member 13 downwards to seal the cloth between rubber rings 15, 17. After pressurising wash water or solvent may be introduced into the chamber and forced through the slurry by compressed air.
Patent GB-623492-A (GB)
Title: Improvements in or relating to paper-making machines
IPC: D21F1/48
Filed: 1947-05-03
Abstract: 623,492. Suction of paper-making machines. MILLSPAUGH, Ltd., and HEYS, R. C. May 3, 1947, No. 11981. [Class 96] [Also in Group XXIX] The suction boxes 2 beneath the wire-cloth 1 of a Fourdrinier paper-making machine are each exhausted by the usual vertical leg 7 to a common suction header and pump, water being drawn off through an adjustable and automatically-regulated double-beat valve 17 to a common pipe 19 leading through a non-return valve to a discharge pump, the pipe 19 being also vented to the suction header; the arrangement avoiding the necessity of the usual barometric legs and low-level seal-pots. The valve 17 is controlled by a diaphragm 26 above which air &c. is supplied through a pipe 30 and needle valve 31, the air &c. being led off at 33 to an outlet 34 controlled by a pad 38 on a lever 39 moved by bellows 37 which respond to the pressure in the discharge pipe of the suctionbox outlet 6, to which the outside of the bellows is connected by a pipe 10, so that a fall in pressure at the outlet 6 opens the valve 17 further. The lever 39 is under adjustable spring pressure at 41, and the valve 17 is prevented from 'hunting' by a spring 45, lever 46 and collar 47. A slide controls the width of the suction-box opening to the wire 1.
Patent GB-544845-A (GB)
Title: Improvements in or relating to laminated structures
IPC: B32B15/08
Filed: 1940-07-22
Abstract: 544,845. Compound sheet materials. BRUYNE, N. A. DE. July 22, 1940, No. 12007. [Class 140] A metallic sheet is secured to a fabric impregnated with phenolformaldehyde resin by simultaneously perforating the sheets so that the metal displaced by perforation penetrates the fabric. Perforation is defined as the formation of pierced depressions or dimples in the metal. A thin sheet of stainless steel or " Duralumin " (Registered Trade Mark] and an impregnated cotton fabric perforated in the machine described in Specification 544,879, [Group XXII], are inserted with additional layers of impregnated fabric in a heated press to set the resin and unite the layers by opening the burr formed by perforation to form a " fishhook " shaped lock as shown at A. The compound sheet material comprising two stainless steel outer sheets and an intermediate layer of laminated phenol-formaldehyde synthetic resin impregnated fabric may be used for covering the hulls of flying boats and the wings, fuselage and airscrews of aircraft.
Patent GB-358864-A (GB)
Title: Improvements in metal plate shearing machines
IPC: C09B67/28
Filed: 1931-04-24
Abstract: 358,864. Shearing. WEHRLE, O., 19, Friedrich Ebertstrasse, Emmendingen, Baden, Germany. April 24, 1931, No. 12168. Convention date, April 28, 1930. [Class 83 (iv).] A plate shearing machine with crank reciprocated cutter 2 coacting with a stationary cutter C is adapted for oblique cuts by tilting the work table 1. For normal cutting the plate 55 is supported on the table 1 within the frame 41. For oblique cutting the table 1, mounted on links 44, is tilted by toggles 26 straightened by resilient racks 22 raised by gearing 16 from a clutch member 8. On adjustment of a hand-lever 4 a shaft 5 is rotated from the clutch which drives a shaft 11 rotating nuts engaging screws on work-holders, and the workholders are adjusted simultaneously with the table. In the tilted position the edge of the table engages the fixed part 41 to relieve the linkage of stress. To dismantle the machine cover plates are slidable to free the blade, and the work-holders with shaft 11 and 'casing 10 are swung on pivots to expose the cutter screws. In a modification, Fig. 2, the cutter frame 51 is adjustable for oblique cutting in a bearing 53 curved about the point of the lower blade, and the table is stationary.
Patent GB-1212404-A (GB)
Title: Adhesion with polymer composition
Inventor: LINDEMANN MARTIN K
IPC: C09J123/08
Filed: 1968-03-13
Abstract: 1,212,404. Laminating with adhesives. AIR REDUCTION CO. Inc. 13 March, 1968 [13 March, 1967], No. 12187/68. Heading B5N. [Also in Division C3] A process for uniting two surfaces comprises coating one of the surfaces with an aqueous latex comprising an ethylene/vinyl acetate copolymer and polyvinyl alcohol, bringing the surfaces into contact and drying the latex. The copolymers may be crosslinked, e.g. with divinyl adipate or succinate, divinyl ether, diallyl ether, triallyl cyanurate, triallyl citrate, diallyl fumarate, diallyl maleate, diallyl melamine, allyl glycidyl ether, glycidyl acrylate or methacrylate, glycidyl vinyl ether, N-methylol acrylamide or methacrylamide; and may contain copolymerized suspension stabilizers, e.g. acrylic, methacrylic, itaconic, maleic or vinyl sulphonic acid. The latices may also contain emulsifiers and dispersing agents, plasticizers, fillers and rubber latices. In examples latices derived from ethylene, vinyl acetate and (1 and 2) hydroxyethyl cellulose and alkylphenol/ethylene oxide condensates, (3) triallyl cyanurate, hydroxyethyl cellulose and alkylphenol/ethylene oxide condensates, (4) sodium vinylsulphonate, sodium lauryl sulphate and alkylphenol/ethylene oxide condensates, (5) acrylic acid, triallyl cyanurate, hydroxyethyl cellulose and alkylphenol/ethylene oxide condensates, (6) sodium vinyl sulphonate, glycidyl acrylate, maleic anhydride, polysodium vinyl sulphonate, sodium lauryl sulphate and alkylphenol/ethylene oxide condensates, (7) N-methylol acrylamide, sodium lauryl sulphate and alkylphenol/ethylene oxide condensates, (8) polyvinyl alcohols of two different viscosity grades, and (9) maleic anhydride, triallyl cyanurate, sodium vinyl sulphonate and alkylphenol/ethylene oxide condensates, are used to laminate polyvinyl chloride, and cellulose acetate films to cloth; and the bonding of polyethylene terephthalate and polystyrene films to cloth and aluminium foil is also referred to.
Patent GB-316091-A (GB)
Title: Improvements in and relating to artificial sausage casings
IPC: A22C13/00
Filed: 1928-06-11
Abstract: 316,091. Stephens, A. J., (Naamlooze Vennootschap Nederlandsche Parasinfabrieken). June 11, 1928. Divided on 313,747. Sausages.-Artificial sausage casings are made by impregnating silk fabric with finely ground fresh flesh substances, e.g., meat or skin sinews, ice being added to the flesh substances during the grinding and stirring. Ammonia, salamoniac, or the like may also be added to facilitate and intensify the smoking. The temperature of the mass may be further lowered during grinding by adding cooking salt. The mass may be thinned with blood plasm and blood serum. The impregnated fabric may be immersed in a water-absorbing substance and finally coated with wax or fat.
Patent GB-575118-A (GB)
Title: Improvements in or relating to methods of and means for preparing concentrated liquid or solid extracts of tea or coffee
IPC: A23F5/50
Filed: 1944-06-28
Abstract: 575,118. Tea and coffee extracts. REAVELL, J. A. June 28, 1944, No. 12285. [Class 129] A concentrated liquid or solid extract of tea or coffee is obtained by preparing an infusion of tea or coffee in a closed extractor so that the aroma or flavouring ingredients a r e retained, evaporating or concentrating the infusion so that the aromatic or flavouring constituents are distilled off, and returning those distilled constituents to the extract at a later stage. Dry spraying may be used to form a soluble powder. A soluble carbohydrate such as glucose or lactose may be added to the liquid or solid at any stage of the process, to improve keeping qualities and render a powder less hygroscopic. The amount added to coffee is preferably one-tenth of the weight of coffee powder. A batch of tea may be infused by using a hot weak extract of tea, instead of water, followed by further extraction with still weaker extract and finally water. Other known methods of percolation and re-circulation may be used. In the figure liquor from a feed tank a is heated in b, and volatile aromatic constituents are distilled off in the still c, d and condenser e and led to a receiver f. Liquor from d is passed through a pipe g to the lower end of an evaporator or concentrator h which may be of the continuous or climbing film type having two or three evaporating stages. Liquor and vapours derived from the first stage are led into a separator m from which the liquor is led by a conduit n back into the evaporator and then into a second separator o. The process is repeated and the liquor passes through h into a third separator p from which the concentrated liquor enters a receiver q. Preferably a common vacuum pipe v leading to a suitable form of condenser and vacuum system is connected to all of the separators. The use of the " Kestner" climbing film principle is referred to in the Specification. A number of examples of coffee or tea extraction are described in the Specification.
Patent GB-216674-A (GB)
Title: Improvements in winches
IPC: B66D1/14
Filed: 1923-05-08
Abstract: 216,674. Welin Davit & Engineering Co., Ltd., Welin, A., and Davis, A. W. May 8, 1923. Winches; brakes; self-sustaining gear; regulating and control-transmitting gear.-In a winch of the type in which the hoisting drum can be moved in eccentric bearings to contact alternatively with driving-mechanism or a brake, the brake and hoisting drums are connected by pawl-and-ratchet mechanism so that the braking action only occurs during lowering. In the construction shown in Fig. 2, the hoisting drum A is integral with the driving collar D and has a pawl-andratchet connection with the brake drum J against which the brake block K is pressed by a spring. Manipulation of a hand-wheel L moves a pinion O bodily over a rack P, thus causing the crank arm N to rotate the shaft B and its attached bearings Q until the collar D contacts with a driving pinion E, or until the drum J is moved bodily away from the block K. A shaft b can be moved axially to apply hand driving gear a when desirable. Modified means of mounting and applying the brake are described, including the use of a band brake. also modified rack-and-pinion mechanism O, P for moving the drum in its bearings.
Patent GB-289447-A (GB)
Title: Improvements in or relating to apparatus for reproducing recorded sound
IPC: G11B25/10
Filed: 1927-10-25
Abstract: 289,447. K³chenmeister, H. J. Nov. 2. 1926, [Convention date]. Divided on 280,188. Multiple machines; optical apparatus; electric <t);d magnetic machines; optical or magnetic soundreproducing apparatus associated with automatic musical instruments.-An apparatus for reproducing sound from a photographic film record, or from a magnetic band or wire record, is combined with a gramophone or phonograph of ordinary type, or with a mechanical musical instrument, such as an automatic piano, so that the two machines or apparatus comprised in the combination can be operated simultaneously or individually. The Figure shows a gramophone (which is of the kind having two sound-boxes o and tone arms n) combined with photo-electric sound-reproducing apparatus. The photographic sound-record film d has central perforations which engage with teeth on the periphery of the turntable c, and passes from a reel f to a reel g driven through a slip clutch r by a motor h, which also drives the turntable. The film passes through an apparatus h comprising a source of light and one or more photo-electric cells i, whereby current fluctuations corresponding to the recorded sound are set up, and, by means of an amplifier k, operate loudspeakers l, L<1>. By using a switch p, telephonic receivers (which, when required, are substituted for the ordinary phonographic sound-boxes o) may be connected in circuit instead of the loudspeakers, so that in this case the sound reproduced from the film record is emitted from the horns m. The switch p may be so constructed as to cause the loud-speakers !, l<1> and the telephonic sound-boxes to work simultaneously. According to the Specification as open to inspection under Sect. 91 (3) (a) electric pick-up devices, connected to the amplifier, can be used on the gramophone. This subject-matter does not appear in the Specification as accepted.